Mounting for abrading wheels



Aug. 5, 1941. J. ENGLISH 2,251,702

MOUNTING FOR ABRADING WHEELS Filed May 16, 1940 Patented Aug. 5, 1941iJNiTED STATES PATENT OFFICE 2,251,702

MOUNTING FOR ABRADING WHEELS James English, Winsted, Conn.

Application May 16, 1940, Serial No. 335,589

5 Claims.

This invention relates to a mounting for abrading wheels or the like,and has, for its object, the provision of novel means for adjustablymounting such wheels with relation to abrading machines.

A further object of the invention is to provide an-adjustable mountingfor the motor which operates the abrasive wheel of an abrading machine.

A still furtherobject is to provide an adjustable mounting, for such anabrading wheel, which includes adjustable means for resilientlypositioning said wheel to apply a desired pressure upon the work whichis brought into contact therewith.

Further objects of the invention and advantages thereof will be moreclearly understood from the following description and from theaccompanying drawing in which:

Fig. 1 is an end view, in elevation, of my improved support on line Ilof Fig. 2.

Fig. 2 is a side view of my improved support shown in association withan abrading machine of a conventional form.

As shown in the drawing, the numeral 5 denotes the base of an abradingmachine upon which is rotatably mounted a turret 6, having supportingchucks l thereon for holding parts of work 8 which are moved intocontact with an abrading wheel for polishing or buifing the same.

My invention includes a support having a base I within which is slidablymounted, for vertical adjustment, a post carrying a frame 12 which ispivoted to a fork IS on said post I I, as at M.

A table I is pivoted on said frame, as at It, by means of dependingportions I! which are connected to an extension I8 of said frame.

A motor I9, which carries and drives the wheel 9, is mounted on saidtable and adjustably secured thereto by means of conventional dovetailslots |50. and bolts I5b. The said motor is so mounted that the weightthereof will tend to rock the table I5 on its pivot and force the wheel9 downwardly in the direction of the work 8.

The rocking of the table IE on its pivot 16, by the weight of the motor,is adjustably limited by means of bolts 22 which are threaded to anextension 2l on the member I2.

Springs 20 are provided, between said extension and table, to urge saidtable and wheel to their normal position.

The said table is provided with an extension 23, upon which isadjustably mounted a counterweight 24, against the weight of the motor,for regulating the pressure which is applied by the wheel 9 to the workparts 8 as they are moved into contact with and under the said wheel.

The wheel 9 may be adjustably positioned with relation to the work parts8 by adjustment of the post H and the memberl2 and the weight which isapplied to the wheel 9, by the motor, may be adjusted by shifting of thecounterweight on the extension 23.

The vertical position and angle of the wheel, with relation to the work,may also be adjusted, as desired, by adjustment of the frame I2 in thefork 13. This adjustment being made by means of the clamping member 25whereby, after the said frame has been adjusted, friction may be appliedthereto by squeezing the portion 26 of said frame between the uprightmembers of said form.

The height of the wheel may also be adjusted with relation to the turret6, or the work 8, by raising the post II in the base I0 within which thesaid post is adjustably secured by such means as the clamping screwmember 28.

From the foregoing description, it'will be readily understood that, inthe operation of my invention, the weight of the driving motor will tendto rock the table I5 on its pivot and force the wheel upon the work, asit is moved into contact with said wheel by the turret 6, with apressure regulated by the counter-weight 24.

It will be further understood that the springs 20 need not be usedexcept to retain the table in its normal position as adjusted by thebolts 22. However, the said spring may act to force the wheel 9 againstthe work in such cases as where my improved mounting is adjusted tosupport the wheel at such an angle that the counterweight 24 will not beeffective.

I claim:

1, A mounting for an abrading wheel, or the like, comprising an uprightbase, a post vertically adjustable in said base, a frame pivoted on saidpost, a wheel supporting member pivoted on said frame, a motor carryingsaid wheel and mounted upon said supporting member, and spring means forretaining said frame in normal position; the weight of said motor urgingsaid wheel in a direction towards work carried past the same, and acounterweight for adjusting the amount of pressure which is applied tosaid work by said wheel.

2. A support for an abrading wheel comprising an adjustable uprightmember, a frame pivoted on said upright member, an extension on saidframe, a wheel supporting member pivoted to said extension, a motormounted to said supporting member and carrying said wheel in operatingposition relative to work brought into contact therewith, spring meansurging said supporting member to move said wheel towards said work,means for adjusting said supporting member against the tension of saidspring means to regulate the position of said wheel with relation tosaid work and a counterweight carried by said supporting member andadjustable to control the tension applied to said wheel by said springmeans.

3. A mounting for an abrading wheel, or the like, comprising anadjustable upright member having a frame pivoted thereon, a supportingmember pivoted to said frame, a pair of springs opposite the pivot ofsaid supporting member urging the same away from said frame, a motormounted on said table and carrying said wheel in position to engage workbrought into contact therewith, means extending through said table andthreaded to said frame for positioning said wheel against the tension ofsaid springs, an extension on said supporting member, and acounterweight adjustable on said extension for regulating the amount oftension which is applied to said wheel by said springs.

4. A mounting for an abrading wheel, or the like, comprising a base, apost vertically adjustable in said base, a forked portion on said post,a frame pivoted in said forked portion, an extension on said frame, amotor support pivoted at one side thereof to said extension, a separateextension on said frame, spring means supported on said separateextension and urging the opposite side of said support away from saidframe, a motor mounted on said support, a wheel rotatably carried bysaid motor in position to engage work on a machine adapted to carry saidwork past said wheel, screws extending through said motor support andsprings and threaded to said separate extension for adjusting theposition of said motor support to regulate the position of said wheelwith relation to the work on said machine against the weight of saidmotor, and a counterweight for adjustably resisting the weight of saidmotor to regulate the amount of pressure with which said wheel isapplied to work brought into contact therewith.

5. A support for an abrading wheel comprising an adjustable uprightmember, a frame pivoted on said upright member, a wheel supportingmember pivoted on aid frame, a wheel rotatably mounted on saidsupporting member and carried thereby in operating position relative towork brought into contact with said wheel, spring means urging saidsupporting member to move said wheel towards said work, and adjustablegravity means to control the tension applied to said wheel by saidspring means.

7 JAMES ENGLISH.

